Uniform resource locator discovery and tracking for managing sponsored data

In one example, the present disclosure describes a device, computer-readable medium, and method for discovering and tracking uniform resource locators (URLs) for the purposes of managing sponsored data. For instance, in one example, a method includes monitoring a request for a stream of data delivered to a user endpoint device via a content distribution network, wherein the stream of data is accessed via a digital content distribution application running on the user endpoint device, discovering a uniform resource locator associated with the stream of data, and updating a list of sponsored uniform resource locators in accordance with the discovering, wherein the sponsored uniform resource locators comprise uniform resource locators that are permitted to be accessed by the digital content distribution application without impacting a data allowance allocated to the user endpoint device.